The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2024
Filed:
Jun. 21, 2019
Applicant:
Subsea 7 Limited, Sutton, GB;
Inventors:
Philip Derek Brown, Dyce, GB;
Eric Fletcher McEwan, Kingswells, GB;
Assignee:
SUBSEA 7 LIMITED, Sutton, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/16 (2006.01); B63B 21/66 (2006.01); B63B 21/20 (2006.01); B63B 22/18 (2006.01); B63B 35/03 (2006.01); F16L 1/24 (2006.01);
U.S. Cl.
CPC ...
B63B 21/66 (2013.01); B63B 21/20 (2013.01); B63B 22/18 (2013.01); B63B 35/03 (2013.01); F16L 1/24 (2013.01); F16L 1/163 (2013.01);
Abstract
A method of launching an elongate subsea structure such as a pipeline bundle unit into water provides buoyant support to the structure by displacing water with a hollow buoyancy unit that applies buoyant upthrust to the structure. By lowering the buoyancy unit in the water to bring a permanently open aperture of the buoyancy unit beneath a surface level of the water, the buoyancy unit is flooded with water through the or each permanently open aperture to reduce the buoyant upthrust applied to the structure. A corresponding elongate subsea structure is also claimed.